2009 Ua 2002 Ford F250 - yukon Gearset - Photo 29357643

2. The Pro Series 80 axle is fitted with a very stout 5.38, 11.25-inch Yukon gearset and an ARB Air Locker. The selectable locker was chosen due to the truck's longish wheelbase, which now measures 135 inches (141 inches factory). A nonselectable locker can sometimes hinder steering, and we wanted to squeeze every inch of turning radius we could out of the truck.